Tacacs+ and Windows AD

Hello my fellow network engineers...

So I'm running TACACS+ for our networking equipment in a Linux VM in our datacenter, and for the most part it works well and it's a good way to restrict access and provide logging info as far as what commands were entered and by whom. However, I was wondering if there is a way to integrate this with Active Directory. I've been looking online, and there seems to be a couple of ways of doing it, but all the guides basically instruct you to get the password of the user and then encrypt it using DES or MD5 and add that to the configuration file. However, I was wondering if there is a way to update this password automatically when the user changes his/her password in AD, instead of doing it manually.

Thoughts?